In vitro studies of antagonistic fungi against the root-knot nematode, Meloidogyne incognita

被引:38
作者
Singh, Satyandra [1 ]
Mathur, Nita [2 ]
机构
[1] Indian Inst Vegetable Res, Dept Crop Protect, Nematol Sect, Varanasi, Uttar Pradesh, India
[2] Indian Agr Res Inst, Div Plant Pathol, New Delhi 110012, India
关键词
antagonistic fungi; culture filtrate; in vitro; Meloidogyne incognita; PLANT-PARASITIC NEMATODES; PAECILOMYCES-LILACINUS; TRICHODERMA-HARZIANUM; BIOLOGICAL-CONTROL; MANAGEMENT; TOMATO;
D O I
10.1080/09583150903484318
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The present study was carried out in vitro to determine the efficacy of indigenous fungi isolated from egg masses of root-knot nematode, Meloidogyne incognita on egg parasitism, egg hatching, mobility and mortality against root-knot nematode, M. incognita. The tested fungi were Acremonium strictum, Aspergillus terreus, A. nidulans, A. niger, Chetomium aubense, Chladosporium oxysporum, Fusarium chlamydosporium, F. dimarum, F. oxysporum, F. solani, Paecilomyces lilacinus, Pochonia chlamydosporia, Trichoderma viride and T. harzianum. All tested fungi showed varied effects against the nematodes. Culture filtrates of A. strictum was very effective against the nematode in regards to egg parasitism (53%), egg hatching inhibition (86%) and mortality (68%) compared to controls. A. strictum was found to have an advantage over P. lilacinus, P. chlamydosporia, T. viride and T. harzianum in that it caused greater mortality of the second stage juveniles (J2). A. terreus did not show egg parasitism but was found to be highly toxic against second stage juveniles (J2) causing high mortality (around 68%). Thus, A. strictum and A. terreus showed good biocontrol potential against root-knot nematode, M. incognita under in vitro conditions.
引用
收藏
页码:275 / 282
页数:8
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